A compound represented by the following formula (1), a pharmaceutically acceptable salt thereof or an optically active form thereof:
wherein each symbol is as defined in the specification. A compound having a calcium-sensing receptor antagonistic action, a pharmaceutical composition comprising the compound, particularly a calcium receptor antagonist and a therapeutic drug for osteoporosis are provided.
下式(1)所代表的化合物、其药学上可接受的盐或其光学活性形式:
其中各符号如说明书中所定义。本发明提供了一种具有
钙感应受体拮抗作用的化合物、一种包含该化合物的药物组合物,特别是一种
钙受体拮抗剂和一种骨质疏松症治疗药物。